blob: b5e759de43f5b7a7139c22dc77bffcc0a7c7404c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindPythonInterp
----------------
.. versionchanged:: 3.27
This module is available only if policy :policy:`CMP0148` is not set to ``NEW``.
.. deprecated:: 3.12
Use :module:`FindPython3`, :module:`FindPython2` or :module:`FindPython` instead.
Find python interpreter
This module finds if Python interpreter is installed and determines
where the executables are. This code sets the following variables:
::
PYTHONINTERP_FOUND - Was the Python executable found
PYTHON_EXECUTABLE - path to the Python interpreter
::
PYTHON_VERSION_STRING - Python version found e.g. 2.5.2
PYTHON_VERSION_MAJOR - Python major version found e.g. 2
PYTHON_VERSION_MINOR - Python minor version found e.g. 5
PYTHON_VERSION_PATCH - Python patch version found e.g. 2
The Python_ADDITIONAL_VERSIONS variable can be used to specify a list
of version numbers that should be taken into account when searching
for Python. You need to set this variable before calling
find_package(PythonInterp).
If calling both ``find_package(PythonInterp)`` and
``find_package(PythonLibs)``, call ``find_package(PythonInterp)`` first to
get the currently active Python version by default with a consistent version
of PYTHON_LIBRARIES.
.. note::
A call to ``find_package(PythonInterp ${V})`` for python version ``V``
may find a ``python`` executable with no version suffix. In this case
no attempt is made to avoid python executables from other versions.
Use :module:`FindPython3`, :module:`FindPython2` or :module:`FindPython`
instead.
#]=======================================================================]
cmake_policy(GET CMP0148 _FindPythonInterp_CMP0148)
if(_FindPythonInterp_CMP0148 STREQUAL "NEW")
message(FATAL_ERROR "The FindPythonInterp module has been removed by policy CMP0148.")
endif()
if(_FindPythonInterp_testing)
set(_FindPythonInterp_included TRUE)
return()
endif()
unset(_Python_NAMES)
set(_PYTHON1_VERSIONS 1.6 1.5)
set(_PYTHON2_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0)
set(_PYTHON3_VERSIONS 3.12 3.11 3.10 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0)
if(PythonInterp_FIND_VERSION)
if(PythonInterp_FIND_VERSION_COUNT GREATER 1)
set(_PYTHON_FIND_MAJ_MIN "${PythonInterp_FIND_VERSION_MAJOR}.${PythonInterp_FIND_VERSION_MINOR}")
list(APPEND _Python_NAMES
python${_PYTHON_FIND_MAJ_MIN}
python${PythonInterp_FIND_VERSION_MAJOR})
unset(_PYTHON_FIND_OTHER_VERSIONS)
if(NOT PythonInterp_FIND_VERSION_EXACT)
foreach(_PYTHON_V ${_PYTHON${PythonInterp_FIND_VERSION_MAJOR}_VERSIONS})
if(NOT _PYTHON_V VERSION_LESS _PYTHON_FIND_MAJ_MIN)
list(APPEND _PYTHON_FIND_OTHER_VERSIONS ${_PYTHON_V})
endif()
endforeach()
endif()
unset(_PYTHON_FIND_MAJ_MIN)
else()
list(APPEND _Python_NAMES python${PythonInterp_FIND_VERSION_MAJOR})
set(_PYTHON_FIND_OTHER_VERSIONS ${_PYTHON${PythonInterp_FIND_VERSION_MAJOR}_VERSIONS})
endif()
else()
set(_PYTHON_FIND_OTHER_VERSIONS ${_PYTHON3_VERSIONS} ${_PYTHON2_VERSIONS} ${_PYTHON1_VERSIONS})
endif()
find_program(PYTHON_EXECUTABLE NAMES ${_Python_NAMES})
# Set up the versions we know about, in the order we will search. Always add
# the user supplied additional versions to the front.
set(_Python_VERSIONS ${Python_ADDITIONAL_VERSIONS})
# If FindPythonInterp has already found the major and minor version,
# insert that version next to get consistent versions of the interpreter and
# library.
if(DEFINED PYTHONLIBS_VERSION_STRING)
string(REPLACE "." ";" _PYTHONLIBS_VERSION "${PYTHONLIBS_VERSION_STRING}")
list(GET _PYTHONLIBS_VERSION 0 _PYTHONLIBS_VERSION_MAJOR)
list(GET _PYTHONLIBS_VERSION 1 _PYTHONLIBS_VERSION_MINOR)
list(APPEND _Python_VERSIONS ${_PYTHONLIBS_VERSION_MAJOR}.${_PYTHONLIBS_VERSION_MINOR})
endif()
# Search for the current active python version first
list(APPEND _Python_VERSIONS ";")
list(APPEND _Python_VERSIONS ${_PYTHON_FIND_OTHER_VERSIONS})
unset(_PYTHON_FIND_OTHER_VERSIONS)
unset(_PYTHON1_VERSIONS)
unset(_PYTHON2_VERSIONS)
unset(_PYTHON3_VERSIONS)
# Search for newest python version if python executable isn't found
if(NOT PYTHON_EXECUTABLE)
foreach(_CURRENT_VERSION IN LISTS _Python_VERSIONS)
set(_Python_NAMES python${_CURRENT_VERSION})
if(CMAKE_HOST_WIN32)
list(APPEND _Python_NAMES python)
endif()
find_program(PYTHON_EXECUTABLE
NAMES ${_Python_NAMES}
PATHS
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}-32\\InstallPath]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}-64\\InstallPath]
[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]
[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}-32\\InstallPath]
[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}-64\\InstallPath]
)
endforeach()
endif()
# determine python version string
if(PYTHON_EXECUTABLE)
execute_process(COMMAND "${PYTHON_EXECUTABLE}" -c
"import sys; sys.stdout.write(';'.join([str(x) for x in sys.version_info[:3]]))"
OUTPUT_VARIABLE _VERSION
RESULT_VARIABLE _PYTHON_VERSION_RESULT
ERROR_QUIET)
if(NOT _PYTHON_VERSION_RESULT)
string(REPLACE ";" "." PYTHON_VERSION_STRING "${_VERSION}")
list(GET _VERSION 0 PYTHON_VERSION_MAJOR)
list(GET _VERSION 1 PYTHON_VERSION_MINOR)
list(GET _VERSION 2 PYTHON_VERSION_PATCH)
if(PYTHON_VERSION_PATCH EQUAL 0)
# it's called "Python 2.7", not "2.7.0"
string(REGEX REPLACE "\\.0$" "" PYTHON_VERSION_STRING "${PYTHON_VERSION_STRING}")
endif()
else()
# sys.version predates sys.version_info, so use that
# sys.version was first documented for Python 1.5, so assume version 1.4
# if retrieving sys.version fails.
execute_process(COMMAND "${PYTHON_EXECUTABLE}" -c "try: import sys; sys.stdout.write(sys.version)\nexcept: sys.stdout.write(\"1.4.0\")"
OUTPUT_VARIABLE _VERSION
RESULT_VARIABLE _PYTHON_VERSION_RESULT
ERROR_QUIET)
if(NOT _PYTHON_VERSION_RESULT)
string(REGEX REPLACE " .*" "" PYTHON_VERSION_STRING "${_VERSION}")
string(REGEX REPLACE "^([0-9]+)\\.[0-9]+.*" "\\1" PYTHON_VERSION_MAJOR "${PYTHON_VERSION_STRING}")
string(REGEX REPLACE "^[0-9]+\\.([0-9])+.*" "\\1" PYTHON_VERSION_MINOR "${PYTHON_VERSION_STRING}")
if(PYTHON_VERSION_STRING MATCHES "^[0-9]+\\.[0-9]+\\.([0-9]+)")
set(PYTHON_VERSION_PATCH "${CMAKE_MATCH_1}")
else()
set(PYTHON_VERSION_PATCH "0")
endif()
else()
unset(PYTHON_VERSION_STRING)
unset(PYTHON_VERSION_MAJOR)
unset(PYTHON_VERSION_MINOR)
unset(PYTHON_VERSION_PATCH)
endif()
endif()
unset(_PYTHON_VERSION_RESULT)
unset(_VERSION)
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(PythonInterp REQUIRED_VARS PYTHON_EXECUTABLE VERSION_VAR PYTHON_VERSION_STRING)
mark_as_advanced(PYTHON_EXECUTABLE)
|
